/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.db.integration;

import static org.junit.Assert.assertEquals;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.apache.iotdb.db.utils.EnvironmentUtils;
import org.apache.iotdb.jdbc.Config;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class IoTDBSensorUpdateIT {

  @Before
  public void setUp() throws Exception {
    EnvironmentUtils.closeStatMonitor();
    EnvironmentUtils.envSetUp();
    Class.forName(Config.JDBC_DRIVER_NAME);
  }

  @After
  public void tearDown() throws Exception {
    EnvironmentUtils.cleanEnv();
  }

  @Test
  public void testMerge()
      throws SQLException, InterruptedException {
    try (Connection connection = DriverManager
        .getConnection(Config.IOTDB_URL_PREFIX + "127.0.0.1:6667/", "root",
            "root");
        Statement statement = connection.createStatement()) {
      statement.execute("set storage group to root.demo");
      statement.execute("create timeseries root.demo.d1.s1 with datatype=INT64,encoding=RLE");
      statement.execute("create timeseries root.demo.d1.s2 with datatype=INT64,encoding=RLE");
      statement.execute("create timeseries root.demo.d1.s3 with datatype=INT64,encoding=RLE");
      statement.execute("insert into root.demo.d1(time,s1,s2) values(1,1,2)");
      statement.execute("flush");
      statement.execute("insert into root.demo.d1(time,s3) values(1,1)");
      statement.execute("flush");
      try (ResultSet set = statement.executeQuery("SELECT * FROM root")) {
        int cnt = 0;
        while (set.next()) {
          cnt++;
          assertEquals(1, set.getLong("root.demo.d1.s3"));
        }
        assertEquals(1, cnt);
      }
      statement.execute("merge");
      Thread.sleep(1000);
      // before merge completes
      try (ResultSet set = statement.executeQuery("SELECT * FROM root")) {
        int cnt = 0;
        while (set.next()) {
          cnt++;
          assertEquals(1, set.getLong("root.demo.d1.s3"));
        }
        assertEquals(1, cnt);
      }

      // after merge completes
      statement.execute("DELETE FROM root.demo.d1");
    }
  }
}
